5
\$\begingroup\$

I have 9 months old Canon 6D. Please, are there stuck/dead pixels on this photo?

https://app.box.com/s/fw5lg0yrvejsv48ol6rm (in the circle, where the arrow indicates)

I have it on all photos. I know, that coloured circle may be stuck pixels, but i have little white crosses too. Please, has anybody the same experience?

Improve this question
\$\endgroup\$
6
  • \$\begingroup\$ exact same location in all photos? \$\endgroup\$
    – rfusca
    May 5, 2014 at 19:21
  • \$\begingroup\$ @rfusca yes in all photos in same location. I use only light from window, without flash or other light. \$\endgroup\$
    – Jana
    May 5, 2014 at 19:49
  • \$\begingroup\$ 1. Have you tried to clean the sensor recently? 2. If you put the lens cap on and make pictures (all black), do you have the same error at the same locations? (If you use Photoshop or Gimp thresholding, you can easily select all failing positions). 3. Crosses are RAW conversion artifacts most likely, most probably showing failing green sensors in the Bayer pattern. \$\endgroup\$
    – TFuto
    May 5, 2014 at 19:58
  • \$\begingroup\$ If these are constant errors, you can easily use a workaround in Lightroom, or do some quick postprocessing in Photoshop. A few failing pixels is usually no big deal, it is annoying, but it is far less important than e.g. dust on the sensor or dirt on the lens. \$\endgroup\$
    – TFuto
    May 5, 2014 at 20:01
  • \$\begingroup\$ @TFuto Yes, I've tried to clean the sensor now and took photo with lens cap on. It is now great, without any bad pixels. Thank you for your advice. \$\endgroup\$
    – Jana
    May 5, 2014 at 20:41

1 Answer 1

Reset to default
6
\$\begingroup\$

Try to clean the sensor, it may be that there are some dust particles sitting directly on it, creating parasitic capacitances near the pixel or blocking light and that is handled incorrectly in subsequent image conversion steps.

Improve this answer
\$\endgroup\$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.